title: Association of congenital malformation of the heart with birth rank and maternal age.
mesh_terms: D018376:Cardiovascular Abnormalities / Q000209:etiology*; D005260:Female; D006321:Heart; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D008423:Maternal Age; D036801:Parturition
keywords: CARDIOVASCULAR DEFECTS, CONGENITAL/etiology and pathogenesis